Lagoona Trenches

The Lagoona Research Lab is an underwater exploration laboratory atop Lagoona Lake. Inside is a plethora of advanced technological machinery, most notably a fossil restoration machine. The machine can take fossils that trainers find in the trenches, and revive the DNA of long-lost ancient Pokémon.

Underwater Treasure
In the Lagoona Trenches, trainers can find a vast amount of treasures hidden deep within undersea rock. These treasures consist of fossils, evolution stones, and other rare commodities.

Fossil Pokémon
Certain ancient Pokémon's fossils can be found within undersea rock. Take these fossils to the back of the research lab, and talk to the male scientist near the fossil restoration machine to reap the benefits of your spoils. These fossils can also be sold to vendors for various amounts, and even traded with other Pokémon trainers when given to a Pokémon to hold. While having more Pokémon can always be beneficial, once you collect them all, you may want to hold onto the rest in case you have a fossil others are looking for!

Evolution Stones
Also found underwater are various evolution stones that can be used on specific Pokémon to help them evolve.

Underwater Items
There are a handful of other items that can be found via underwater mining. The rarity of these can range.